USUS·CBS NewsA Pilates teacher thought she had the flu. Doctors found aggressive cancerDebi Weiss thought her fatigue and weakness was a seasonal illness, but her condition quickly worsened.Lean LMar 7Read at CBS News→USUS·CBS NewsA Pilates teacher thought she had the flu. Doctors found aggressive cancerDebi Weiss thought her fatigue and weakness was a seasonal illness, but her condition quickly worsened.Lean LMar 7Read at CBS News→